Threat Database Trojans Trojan.Agent.Gen.FGN

Trojan.Agent.Gen.FGN

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Popularity Rank: 26,695
Threat Level: 80 % (High)
Infected Computers: 1
First Seen: September 9, 2026
Last Seen: September 16, 2026
OS(es) Affected: Windows

Trojan.Agent.Gen.FGN is a dangerous Trojan horse that targets Windows computers. It is designed to install itself quietly, without the user's knowledge, and then carry out harmful actions behind the scenes. With a danger level rated as high, this threat should be taken seriously by anyone who suspects it may be present on their system.

What Trojan.Agent.Gen.FGN Does

Once active on a system, Trojan.Agent.Gen.FGN runs silently in the background, avoiding obvious signs that would alert a typical user. It is built to perform malicious functions that can give remote attackers significant, and potentially complete, control over the infected computer. This level of access means the Trojan can be used as a foothold for a wide range of follow-up attacks, including data theft, installation of additional malware, or further manipulation of the compromised system. Because it operates covertly, the Trojan can remain on a device for an extended period before being noticed, giving attackers ongoing access to the machine and its data.

How It Usually Gets Onto Computers

Trojan.Agent.Gen.FGN typically spreads by exploiting system vulnerabilities and existing security flaws in the operating system or installed software. It is also commonly distributed through software downloads from malicious or compromised websites, as well as through email attachments sent from untrusted or unknown sources. These attachments are often disguised as seemingly harmless files, such as executables, media files, or image files, in an attempt to trick users into opening them. Because the infection method relies heavily on deception and unpatched vulnerabilities, users who download software from unverified sources or open unexpected email attachments are at greater risk.

Risks for the User

The presence of Trojan.Agent.Gen.FGN on a system poses serious risks. Since it may allow attackers to gain extensive control over the infected machine, victims could face unauthorized access to personal files, credentials, and other sensitive information. The Trojan may also be used to covertly download and install further malicious software, turn the computer into part of a larger attack infrastructure, or disrupt normal system operations. Given its high danger rating, infections of this kind can lead to significant privacy violations, financial loss, or long-term compromise of the affected device.

Signs of Infection

Because this Trojan is designed to run silently, it may not produce obvious symptoms, but users should remain alert for the following:

  • Unexplained slowdowns in system performance or unusual CPU and memory usage
  • Unexpected network activity or data transfers when no legitimate programs are in use
  • New or unfamiliar processes running in the background
  • Security tools being disabled or failing to update properly
  • Unusual system behavior, such as unexpected crashes or configuration changes

How to Stay Protected

To reduce the risk of infection from threats like Trojan.Agent.Gen.FGN, users should keep their operating system and all installed software fully updated, since this helps close the security vulnerabilities that such Trojans often exploit. It is also important to avoid downloading software from unverified or suspicious websites and to be cautious with email attachments, especially from unknown senders or unexpected messages. Regularly scanning the system with reputable security software, maintaining backups of important data, and practicing general caution online can go a long way toward preventing this type of silent, high-risk infection.

Analysis Report

General information

Family Name: Trojan.Agent.Gen.FGN
Signature status: No Signature

Known Samples

MD5: c3177f8cd0bb1f10acb0597d2529d836
SHA1: 7f34e11d9c1d6925a432e43cf9cefb5da1b2f433
SHA256: 88C1C8B1E47FEA0EFFA9E85BD97CA0EFB60E8525A35CA3802EBE5A10391F6A48
File Size: 819.71 KB, 819712 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have security information
  • File has exports table
  • File has TLS information
  • File is 64-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
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  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • dll
  • x64

Block Information

Total Blocks: 405
Potentially Malicious Blocks: 13
Whitelisted Blocks: 392
Unknown Blocks: 0

Visual Map

0 0 0 0 0 0 0 x x x 0 x x x x x x x x 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
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  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN